Sheave-bearing housing



J H FOOTE SHEAVE BEARING HOUSING 'Filed Jan. 30,

July 3, 1923.-

5 INVENTOR.

Patented July 3,1923.

JAMES H. FOOTEOF CINCINNATI, OHIO.

SHEAVE-BEARING HOUSING.

Application filed January 30, 1922. Serial No. 532,776.

ToaZZ wlzomt't may concern:

Be .it known that I JAMES H, Foo'rn, a citizen of the United tates, residing at the city of Cincinnati, in the county of Hamilton and State of Ohio, have invented new and useful Improvements 1n SheaveBearing Housings, of which the following is a specification. I

My invention relates to sheave bearing housings for sash cord pulleys and the like, and more particularly to the form and manner of arrangement of their parts for looking the sheave housing toa mounting frame; the object being to provide a cheaply constructed sheave bearing housing that may be quickly'and securely locked to a mounting frame, when positioned therein, without the use of screws or similar securing devices; a further object being to furnish a sheave bearing housing that may be easily released and removed from the mounting frame should occasion require.

These and other objects, I attain by 1nechanism'such as illustrated in the accompanying drawing, in which I Figure 1 1s a view in front elevation of a housing embodying my -'1I1,VIll3l011 with the sheave removed; Fig.2, isa view in ver-' tical section taken on the dotted linear-a.

of Fig. 1, the position thesheave would occupy beingiindicated in dotted lines; Fig. 3, is a view in vertical section taken on the dotted line 0-0 of Fig. 2,1ooking toward the front; F ig. 4, is a fragmentary view in horizontalsection taken on the line 6-?) of" Fig.

1, looking toward the lower end of the housconnected to separately formed housing wallsof sheet metal, it will be understood, that the faceplate and housing walls may be formed from a single pieceof sheet metal, if preferred.

It will also be -understood-that, any or all of the parts composing the housing or sheave, may be formed by othermeans than sheet metal bywell known processes now, in

general use.

A face plate 1, having a centrally disposed opening 2, and carrying upper and lower rearwardly projecting tongues3,.4

having flexible pronged extensions- 20, '21,

and rearwardly extending, medianly positioned flanges 5, 6, to provide spacers, lock, ing and connecting elements, a pair'of side walls 7, 8, turned inwardly at their upper" and lower ends and adapted, cooperatively, to form an upper cross wall? and a'lo wer cross wall '10, a shoulder pin 1'1 by whichthe housing parts are maintained in" as f sembled position, and a sheave 12,. which may be rotatively mounted on pin 11, constitute substantially, the component parts of my improved sheave bearing housing, Y

Tongue 3 is 22-23, and tongue 4 with side tongues 24-25, adapted to fit respectively into slots 26-27, and 28-29, formed in the bottoms 'providedwith side tongues of slight depressions 30-31 and 32-33, ad:

jacent the upper and lower ends'of wallsi'l',

8, thus forming complementaryinterlocking parts for conn 7, 8.

An additional connection between these ecting face plate 1 to side walls I parts may be provided, if desired, by bend;

ing outwardly the ends of flanges. form hooks 40-41,

tension 20 having outwardly projecting terminal prongs 14-15, adapted for locking 1' and forming slots.- 42-43, in walls 7,8, for them to fit into or, flanges 5, 6, may be welded to WallsT, 8. i

, Tongue 3 is provided with a flexible e X-" engagement with a mounting frame 13, and

for a like purpose, tongue 4, is provided with a flexibleextension 21-, projecting terminal prongs 16-17.

Flexible extensions 20, 21, are. preferably formed of a rearward "continuation of tongues 3, 4, somewhat reduced in width to admit of free outwardly and inwardly bendingmoveme'nt between walls 7 and 8.

These extensions may be formed, how

having outwardly ever, of separate pieces welded or otherwise V 7 connected to tongues 3,4, ii -preferred In flexible extension 20 of tongue 3 an opening. 18, and in flexible extension 21 0f tongue 4 an opening 19- is formed by removal of a portion ofthe metal in 'a plane slightly beyond that of the rear edges 'respectively, of side tongues 22-23 and 24-25,.

to diminish the resistance of these extensions to bending and facilitate the movement of their respective terminal prongs 14-15 and 16-47, into locking engagement with mount ing frame 13, as well as to provide ways for obtaining a purchase upon the outer face 20" of flexible extension 20 and ill of flexible extension 21, to facilitate withdrawal of prongs l-l15 and 1U-1T, from locked engagement with mounting frame 13, should occasion require.

Side walls 7, and 8 are provided at their upper and lower ends with slots and 3637 for the outwardly and inwardly passage respectively, of prongs 1-l15, and 16- 17 while undergoing moven'ient into or out of locking engagement with mounting frame 13, and are further provided with een tnil ly disposed circular openings 38, into which the reduced ends 11" of shoulder pin 11, are adapted to fit.

lVhen assembled, side walls 7, 8, are spaced apart by flanges 5, 6, the hooked ends tO, 4E1, of which, are fitted respective ly into side wall slots 112, it by tongues 3, 4, the side tongues and 2-l-25 of which are fitted respectively into side wall slots 2627 and 28-29, and the flexible extensions of which, 20, 21, are bent ii'iwardly to assume position substant-iall as shown in Fig. 2, with prongs let-15, just entering slots and prongs 1o17, slots Pie-31, by shoulder pin 11, upon which sheave mounted, and the reduced ends ll of which are fitted into side wall openings 38, 3E), and by the upper and lower inwardly bent portions of walls T, 8, which meeting on a median line, form upper and lower cross walls 9, 10.

To secure and maintain the sheave and housing parts in their then relative assembled position, the projecting ends ll of shoulder pin 11, are riveted up on the outer sides of walls 7 and 8, which thus become permanently held between the rivet head and shoulder respectively at opposite ends of pin 11.

To posit-ion for use, the sheave bearing housing is passed inwardly through an aperture formed in mounting frame 13, for it to fit into, until itsinward passage is arrested by face plate 1, which is extended somewhat laterally beyond the walls of the housing, in engagement with the front face of mounting frame 18.

A pointed or wedge shaped tool, for instance a brad awl or a screw driver blade,

may then be introduced through face plate opening 2 between sheave 12 and tongues 3, 4:, and the flexible extension 20, 21, of these tongues prized or weoged outwardly, thus moving their respective prongs 1.'l15 and 16-47, outwardly through side wall slots 3 35 and 3637, into engagement respectively with the upper and lower ends of the aperture provided. for the housing to fit into in mounting frame 13, thus maintaining the housing against retrograde or forwardly movement and locking it in said aperture.

Or, by means of a forked tool having a pair of wedge shaped tines spaced to admit the sheave between them, by a single backwardly movement, prongs 1-ll5 and l617, may be simultaneously moved outwardly in to engagement with the mountingframe.

To unlock and remove the housing from the mounting frame, a pointed tool, for instance a brad awl, may be introduced through openings 18, 19, in (flexible exten sions 20, 21, a purchase obtained with the point upon their outer faces 20 and 21 respectively, and extensions 20, 21, prized inwardly until their respective prongs 1Al-l5 and 161T, have resumed substantially the position shown in Fig. 2.

T he housing may then ly out of the frame aperture.

or ironrse, various modifications and changes in form and material will suggest themselves that may be utilized without any departure from the invention as herein dis; closed, and such as well as other modifications need not be illustrated as modifica tions within the spirit and scope of the in-] vcntion shown and pointed out in the claims, will be obvious to those skilled in the art.

that I claim is 1 5i ik ly, -1 4 i. i sieaic carin iousin consis ing 0 a sheave, asupporting element to which said.

sheave is journaled, adapted to fit into an aperture in a mounting fran'ie, a faceplate provided with a centrally disposed opening for the passage of the sheave and with means to engage the mounting frame, spacers for the side walls of the supporting element carried by and connecting said face plate to said supporting element, each of a plurality of said spacers being provided with.

a flexible extension, and means associated with said extension to releasably engage,

the mounting frame and, in cooperation;

with the face plate, lock the housing to said frame.

2. A sheave bearing housing comprising a sheave, a supporting element adapted to fit into an aperture in a mounting frame and having sidewalls between which the sheave is mounted, a face plate laterally extended to overlie a portion of the front face of the mounting frameadjacent said aper ture, and having a centrally disposed opening forthe passage of thesheave, spacers for, and projecting inwardly between, the

walls of the supporting element carried by" and connecting said face plate to said sup porting element, each of a plurality of said spacers having a rearwardly projecting flexible extension provided with means for releasable engagement with the mounting frame, and means associated with the supporting element to facilitatesaid engagement with the mounting frame.

3. A sheave bearing housing comprising, a sheave, a supporting element adapted to fit into an aperture in a mounting frame and having side walls between which the sheave is mounted, a face plate with means to engage the mounting frame and having an opening for the passage of the sheave, spacers carried by said faceplate, for and projecting inwardly between the, walls of the supporting element, interlocking parts on said spacers and on the walls of the supporting element to lock the face plate to said supporting element, and a flexible extension, projecting rearwardly from, respectively, the upper and lower of said spacers, provided with means for engagement with the mounting frame.

4. A sheave bearing housing consisting of a sheave, a supporting element adapted to fit into an aperture in a mounting frame and having side walls to which said sheave is journaled, a face plate adapted to engage the mounting frame and provided with an opening for the passage of the sheave,

a plurality of spacers projecting rearwardly between the walls of the supportingelement carried by said face plate, interlocking parts on said spacers and on the walls of the supporting element to lock the face plate to said supporting element, and a flexible extension, extending rearwardly from both the upper and lower of said spacers, provided with terminal prongs adapted to engage the mounting frame.-

5. A sheave bearing housing comprising a sheave, a supporting element to seat in an aperture in a mounting frame andhaving side walls to which said sheave is j ournaled, a face plate provided with an opening for the passage of the sheave and with means to engage the mounting frame, a plurality of spacers carried by said faceplate and pro jecting inwardly between the walls of the supporting element, interlocking parts on.

mg element to lockthe face plate to said said spaces and onthe walls of the supportsupporting element, a flexible extension,

provided with terminal prongs for engagei i ment with the mountmg'frame, extending rearwardly from each of a plurality of said spacers, and means to facilitate the passage of said prongs into engagement with'said mounting frame. Y

(LA sheave bearing housmg comprising a sheave, a supporting element having side walls to which the sheave is journaled,

adapted to fit into an aperture in a mounting frame and provided with means to sustain the thrust of said element against the ends of said aperture, a face plate provided with an opening for the passage of the sheave and with means to engage the mount ing frame, a plurality of rearwardly projecting spacers carried by said face plate, tongues on said spacers and slots on the Walls of the supporting element to connect the face plate to said supporting element,

a rearwardly projecting flexible extensioncarried by each of a plurality of said spacers and provided with terminal prongs for en*.'

scribed my name this 26th day of January JAMES H. FOOTE. 

